First Look 48 Fosi Audio GR40: Airy Goodness

This days we can get interesting tube stuff at affordable prices. How does the Fosi Audio GR40 fare? Can it do IEMs? Thanks to Fosi Audio for providing me this copy of the device for review: https://fosiaudio.com/products/gr40-tube-dac-preamp 00:00 Introduction 00:35 Unboxing 01:04 Specs 02:07 Tubes 03:20 Controls and IO 04:16 Impression Setup 05:11 First Impression 06:00 Second Impression 07:15 Ground Hum 08:24 vs Cayin N3 Ultra 10:25 Probably not for DCA Stealth 11:30 Final Thoughts -------------------------------------------------------------------------------------------- IEM Measurements: https://zpreviews.com/2024/07/29/measurements/ Contact me for Collab/Reviews: Audio Reviews: https://zpreviews.com Photography Website: https://zpeaktures.squarespace.com/contact Email: zpeaktures@gmail.com Like my content? Support me and my reviews via Kofi! https://ko-fi.com/zpeaktures Instagram: https://www.instagram.com/zpeaktures/ Audio Instagram: https://www.instagram.com/zp_reviews Facebook: https://www.facebook.com/Zpeaktures Headfi: https://www.head-fi.org/members/tassardar.154433/#showcase-reviews Video Shot with Canon C200 Canon CN-E 18-80mm Sennheiser MKH 8060